Abstract
A field experiment was carried out at Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur during Rabi season, 2021–22. The experiment was conducted using a split plot design with three varieties of fodder oat (Kent, JHO-822 and Local) in main-plots and four different sowing dates (15th November, 25th November, 5th December and 15th December) in sub-plots with three replications. The results obtained from the experiment showed that ‘JHO-822’ recorded 9.4 and 29.5% higher green and dry fodder yield than local variety and accumulated the highest meteorological indices (GDD, HTU and PTU) and resulted in the highest HUE and PTUE. Among different micro-environments, seeding on 15th November recorded the highest green and dry fodder yield with substantially greater values of agro-meteorological indices which decreased with advancement of sowing date. Per day delay in sowing resulted in 0.7% decrease in green fodder yield and 1.2% decrease in dry fodder yield.
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